Synthesis of high-molecular-weight poly(L-lactic acid) through the direct condensation polymerization of L-lactic acid in bulk state

被引：80

作者：

Chen, GX ^{[1
]}

Kim, HS ^{[1
]}

Kim, ES ^{[1
]}

Yoon, JS ^{[1
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

来源：

EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 02期

关键词：

high molecular weight; poly(L-lactic acid); direct condensation polymerization; stereosequence;

D O I：

10.1016/j.eurpolymj.2005.07.022

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

A strategy was attempted to produce high-molecular-weight poly(L-lactic acid) (PLLA) through the direct condensation polymerization of L-lactic acid in bulk state. Polymerizations were carried out with titanium(IV) butoxide (TNBT) as a catalyst employing different duration of decompression, esterification and polycondensation. The molecular weights were characterized by using the gel permeation chromatography (GPC). The stereosequences were analyzed from the C-13 NMR spectra on the basis of the triad fractions. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：468 / 472

页数：5

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